Flushing-valve.



E. G. WATROUS.

PLUSHING VALVE.

uPmoA'rIoN 111mm MAB. 1a, 1912.

1,066,350. Patent-,ed July 1,1913.

UNITED STATES PATENT oFF-Ion. Elim: Wamnous, or emesso', ILLINOIS.

@usarseuws noce-asa Paten-ted July 1, 1913.

To all whom it may concern f Be it known that I, EAR-L G, W'Arnous, a.

citizenA of the' United States, residing at Ch'- cago, in-'the countyofCook 'and State of Illinois, have .invented certsin ,newA mnd'use'-ful Improvements in Flushing-Valves, of

which the following i's a specification, reference bei'ng hadxtoVtheuccompanying drawings, forming part of this specification.

My invention relates to that classgof llushing valves known asslow-closing valves,

which may be quickly opened to their full extent or substantially so,by' the movement of an easily manipulated art, to' produce a maximum'flow of water or a briefpe'riod, and then closed slowly topr'oduce arelatively prolonged and gentle flow gradually decreasing during theautomatic closing of the'valve.

The novelty of my invention will be hereinafter more fully set forth',-and particle;

larly pointed out in my cla'n-is.l

In the accompanying drawingsFignre 1- is a vertical central section ofmy improved valve in closed position, some of its parts,l however, beingshown in elevation and Fig. y

2 a similar view, with .the valve in open position. f

The same reference numerals ,are used "to indicate corresponding partsin both views.-

In the ,particular embodin'i'en't` of my invention chosen for the*purposes of 'the fo-regoing, illustrations, en exterior casingisn'ection hat one side with an outlet con-1 nection 5, and with a bodyportion 6 which is ofv generally cylindrical formand co-axial,

with the inlet 4, and open at its f'upper end.

A diaphragm 7, cast integral with the casing and transversely oft'lfiebody thereof below the outlet 5, separates the inlet-chamber 8`from the main chamber 9 and discharge passa e 10, but is provided with acentral cir- 5 Acu -ar opening 11 which forms the valve -p'as- 5 A valveseat 12, con-g sage for the water.

sisting of a leather orother packing ring, is g compressed between thediaphragm (which isra'bbeted to receive it) and Athe contracted lowerend of an inner cylinder i3 Whosel upper end is closed by ailanged heador cap i 14', and whose contracted lower. lend constig tutes a ring 15which rabbeted to receive f the provided lin -its lower portion, Aabovethe -1', yvith ports 17 for the free passage ring 12. The cylinder 13is? into the upper end of said casing and is prvided with an internaldepending a'nge and the upper endof the casing is confined of waterthrough it.fro'rn the inlet 4 to the outlet when themain' valve'is open,and is clamped in position within the outer casing by means of a' screwcap 18 whichv is screwed which vbears upon the -upper end of thecylinder head 14, and also has lan outwardly .projecting recessedVflange Abetween which a packing ringl i The main valve comprises acircular disk 24', the edges of which are turned upward to bear againstthe valve seat 12, as at 25, and a. short cylindrical portion 26 fittingwithin-the ring 15 of the cylinder 13. An integral hollow stem 27connects the valve 24 with a piston 28 working within the cylinder 13and provided with a central internallyl threaded depending hub 29 intowhich the upper end of the valve stem 27 is Y, screwed. Win s- 30integral with theV valve 24. and stem 2 servethe usual purpose ofguiding the valve with respect to its seat.

Located within am annular recess formed 8% to receive it on the bottomof the main valve 24 is a'valv'e seat 31, the passage through which isco-axial with that throughi'the hollowvalve stem 27, anda supplementalrelief valve 32 carriedby a valve stem 33 cooperates with said seat. Thevalve Stem 33 extends vertically through the valve structure to thevupper end thereof, Where it has. secured to it a push button whichguided at its-lower end 35 in the cylindrical upper end 36 of the casingcap 18 before mentioned. A coiled spring 38 confined between the pushbutton 34 and the head 14 of' the cylinder 13 yieldingly holds the pushbutton and valve stem 33 and valve 32 in their upper position, with thevalve 32 seat- -ed against its seat 31, and serves to return them tosuch position when they are de pressed therefrom and released. A packE() Within the cylinder 13 and above the-piston 28 therein is asupplemental piston 39, l

which is pinned or otherwise rigidly secured to'` the valve stem 33,such 'supplemental vpisgton being so locaitedtt'lxat in the normaalposiof the 'parts Lit is slightly siee'p'axxz-teidV llrom the piston iasshown. Y The piston '1.19

39 is provided upon its upper side with a raised circular valve seat 41'upon which rests a cheek valve 42 consisting of a llat disk loose uponthe valve stem 33 and fre-e to rise and fall thereon and with referenceto its seat 41. A series ,of openings 40 through the supplemental piston39, Within the circularV valve seat 41, permit-free .passage of watertherethrough in an upward direction, its passage in the oppositedirection being prevented by the check valve 42.

A restricted and adjustable escape passage 43 for the water from theupper end of the cylinder 13, above the supplemental piston. 39,is'providedby a regulating screw.A 44 which is screwed into a threadedopening formed in the depending --flange of the cylin;

der head 14 at one side thereof and providedl with a tapered slot 45. Ahollow boss 46 formed upon the exterior casing teoncen!A trically'Withthe regulating screw- 44, and

normally closed by a screw plug 47, affordsj access to the screw 44 forthe purpose :of ad-f j usting the same.

The operation of the valve, u nder the construction andl arrangement ofparts above described, is as follows: A slight de*l pression of the pushbutton 34 at the 'top of the valve serves to open the relief valve 32jat theunder-side of the main valve and perj mit free passage of waterfrom the inletj chamber 8 through the hollow valve stem 27 to the upperside of the piston 28, asi well as to the-upper side of the piston 39.3

This pressure, exerted upon the upper side of .the piston 28,'Which isof considerablyV greater area than the main valve 24, will overcome thepressure of the Water against; the under-side of the main valve andun'-I seat the latter, theb gravity of the parts also The i pressure 1assisting in the operation. upon the push button 34 being continued,

so as to hold the valve 32 away' from its seat 31 as the main valvedescends, the latter will be moved downward by the pressure upon theupper side of its piston`28, aided by the Agravity of the part-s, untilit reaches its 'fully open position shown in Fig. 2, at which time therewill be a free passage of water through the. valve structure from theinlet chamber S to the discharge passage 10, the interior of thecylinder above the supplemental piston 39 being also filled with waterwhich has passed upward into the samethrough the openings 40 in saidpiston. leasing. the pressure on the push button 34 the spring 38 willlitt the valve stein 33 and valve 32 until the latter seats against ilsseat 31 on the under-side of the main valve 24, as shown in Fig. 2, andthereby cuts olf `further passage of the water through (he hollow valvestem 27 to the upper side of Upon re Y of the main valve structure (tpassage 43, the main valve 24 will be slowly lifted and closed by theaction of the spring 38 -aided by the pressure and flow of the. waterbeneath and-around said valve.

valve stem 33, is the controlling piston in this upward movement of theparts, since said piston (and consequently the valve stem and reliefvalve 32,)` cannot move upward any faster than permitted by the escapeof water through the restricted passage 43. In eventthe main valve,under the The vsupplemental piston- 39, fastened to the pressure andflow of the Water beneath and f around it, should at any time be movedupf Award faster than. the escape of the water from the upper end of thecylinder 13 per mits the piston 39 and valve stem 33 and valve 32 tomove upward', and consequently be moved upward independently of andrelatively to said parts, the valve seat'31 carried by the main valve 24will belifted 'away from the relief valve 32,`Whereupon water underpressure will be instantly readrnitted through the hollow valve stemA 27to the upper side of the piston 28 and serve to arrest such independentupward movement of the main valveand its connected parts, and cause theslowly rising relief valveto again be seated against its seat 31 and cutoff further admission of water under pressure through .the hollow valveStem 27 to the upper.-sid'e ofthe piston 28. .In'this manner the closingmovement of the main,

valve is effectively regulatedv and controlled.

by means of the supplementalpiston 39 and the relief valve 32 and theircontrol, in the manner described, of thead'mission of water underpressure tothe up erside of thefpis-` ton 28, with' the resultt at allhammerirlg' or chattering of the 'main valve, during its 'closingmovement, is eliminated, and said valve moves quietly and smoothly. toits seat and cuts ol' the flow of water -without any objectionablenoise.'

In many valves of this general character the main valve is opened, or atleast unseated, by direct manual pressure, and against the full head ofthe water exerted upon the entire area of the main valve, with theresult that a very considerable manual pressure is required to open thevalve. In my improved valve all the manual pressure required to open thevalve-is an amount sufficient to depress the push button 34 against theresistj ance of' the coiled spring 38 and the comparatively slightpressure of the Water exerted against. the under-side of the smallrelief valve 32, so that the valve may be opened with much greater easeand with the exertion ot' only a small fraction of the manual pressurerequired in the other valves described. Furthermore, inasmuch as thevalve stem to which the push button is secured carries abutments uponopposite sides e piston 39 am@ if. ma am relai verve :nauw in uw mainvalve is placed to a considerable extent under manual control of theoperatot, so that if? it sticks or movesv sluggishly it ma be forceddownward or pulled 11p` Ward y manual manipulation othe push buttonV yAfter the lvalve has-been opened and been allowed to close the water inthe up r end of the cylinder I3, above the istons 28 and 39, quicklyescapes 'around saldA pistons'l andr out through the ports 17 throughvthe discharge passage 10, with the' result that in thenormalco'nd-lftion of the valve the cylinder in which the pistons `workis free from water, and there'is therefore l'ess tendency to theaccumulation of products of' oxidation and other accretions which tendto interfere with'j the operation of the valve andlo limit the periodof' its efficiency than there is where the cylinder in. which the pistonworks is' normally filled with Water.

I claim:

l.' lna @usb-ing valve, the combination of a. cylinder, a pistontherein, a main valve connected to said piston, a supplemental valvecontrolling a passage leading from the pressure supply through the mainvalve to thev cylinder, a supplemental piston located inthesamecylinderas themain piston and connected to vthe supplemental valve, and

. `means Vfor manually opening the supplemental valve; substantially asdescribe 2. In a ilusbingvalve,the'coinbination of a cylinder, a' pistontherein, a main-valve having a tubular valve stem, connecting it withsaid piston, a sup lemental valve controlling a passagelea ing from theinlet side of the main .valve through-said'val've and its tubular stemtothe'cylinder'and having a stem extending longitudinally through thesame and through thecylinder to the upper side Yof the latter, andasupplemental piston fast up'on the supplemental -valve stem above themain piston and Within the same cylinder ;'l substantially as described.

3. lin a iushingA valve, the combination 'of acylinder, la pistontherein, "a main valve lla-vinga tubular stem connecting it vvith saidpiston, a su plemental valve having a Av alve-stemexten inglongitudinallyl through the main valve and itsetubular-stem 'and thecyli-'nder to the upper side ofthe latter 'and operating to control apassage leading/from 55 the-pressureY supply through the main valve andits tubularfsie'm to the cylinder,^a supplemenztal'piston fast upon-thesupplemental valve stem above the main piston andvwithin .the same`cylinder-, a push button upon the upper endlof' the supplemental val-vestem "for depressing the latter to open the supplemental. valve, and aspring operating to close said lsupplenrental valve; substantially asdescribed, G5

- 4. Inaiiushing'valve, the' combination of a cylinder, a piston.therein, a main valve connected to said piston, a supplemental valvecontrolling a passagle the pressure supplythrong l the'maln valve to thespace Wlthin the cylinder above the main piston, a supplemental pistonlocated wit-hin said space in said cylinder andgconleading from structedtopermit the' waterfto freely. pass it Y in an .upward direction but notin the reverse direction, and a manually operable valve stem connectingsaid supplemental 'piston with the supplemental valve; substantial-ly asdescribed.

5r Ina fiushing valve, thell combination a cylinder, a piston therein, amain' valvehaving a tubular valve stem connecting it? with said piston,a supplemental valve controlling a passage leadln from the inlet 'sideof the main valve throug said valve and its tubular stemto the spacewithin the cylinder above the main piston, a supplemental pistonlocated. in said space withln the'cylinder above the main piston andconstructed to permit the water to pass it freely in an upwarddirectionbut notin vthe reverse direction, and a`manually operable.valve stem extendin longitudinallythrough .the cyl- Vinder an thetubular stem of the vmain valve and having the supplemental valve andthe supplementalpiston secured to it below "the main valve and above themain piston, re-

spectively; substantially as described.' v

6. In allushing valve the combination of a cylinder, a pistonfftherein,a mainvalve f'havin a tubular'stem` connecting it with valve stemextending lclingitudinally'throu'` the main' valve and its tubular stemand tile cylinder to the upper side of the'latter and operating vtocontrol a'passage leading from the pressure supply througll'the mainvalve audits tubular stemto the cylinder',1 a supplemental piston fastupon the supplemental valvestem, above the main piston and Within thesame cylinder and constructedito permit the water to freely pass it inan upward di- Vrection but not in the reverse direction, a

vpush button upon the upper end of the sup-v plemental valve stem fordepressing the latter to open the supplemental valve, and a springoperating to close -said 'supplementa valve; substantially as described.

7,. In'a flushing valve,'the combination of j 'a cylinder 1n opencommunicatlon. atints I-OO saidpiston, a supplemental valvehaving a 4itin an upward direction but not in the 8. In a Hushing valve, thecombination of a cylinder in open communication at its the supplementalvalve stem Within the cyl` lower end with the outlet chamber of thevalve, a piston in said cylinder,'a main valve controlling communicationbetween t-he inlet and outlet chambers of the valve and -having atubular valve stem connecting it with the piston, a supplementalvalvecontrolling communication through, said tubular valve stem between theinlet Chamberland the space above-the piston Within the cylinder, asupplemental piston located in' said space above the piston within thecylinder and constructed to permit the water to freely pass it in anupward direction but not in theI reverse' direction, the supplementalvalve stem extending longitudinally through the tubular stem of the mainvalve and through the cylinder and having the supplemental valve securedto itbelow the main valve and the supplemental piston secured to itabove the main piston, a push button upon the upper` end'of said valvestem, and a spring exerting an upward pressure upon said push button andvalve stem; substantially as described.

9. In a flushing valve, thc combination.

of a cylinder, a piston therein, a main valve connected to said piston,-a supplemental valve cor Lrolling a passage leading from the pressuresupply through the main valve to the cylinder, a supplemental pistonconnected to and moving withv saidA supplemental valve within thecylinder, a check valve controlling passages through said supplementalpiston, and means for manually opening the sup lemental valve;`substantially as descri ed.

10. In a flushing valve, the combination o fa cylinder, a pistontherein, a main valve having a tubular valve stem connecting it withsaid piston, a supplemental valve controlling a passage leading from thepressure supply through the main valve and its tubular stem to thecylinder and having a stem extending longitudinally through the same andthrough the cylinder to the upper side of the latter, asupplementalpiston fast upon inder, and a check valve controlling passages through said supirilemental pist-on; substantially as iescribed. v

` 1l. In a flushing valve, the combination of the cylinder 13, thepiston 28 therein, the main valve -24 having the tubular stem 27connected at its upper end with the piston 28, the supplemental valve 32'controlling the passage of water from the inlet to the upper side ofthc Apieton 23 and having a stem 33 extending lougitiulinally through'the main valve and its tubular stem and the cylinder 13 to the upperside of the latter, and the supplemental piston 39 fast upon the valvestem 33 above the main piston 28 Within the cylinder 13; substantiallyas described'.

12. In a iushing valve, the combination of the cylinder 13, the piston28 therein, the main valve 24 having the tubular stem 27 connected atits upper end to the piston 28,

the valve stem 33 extending longitudinally through the main valve andits tubular stem and the cylinder 13 to the upper-.side of theV yrnainvalve 24 having t-he tubular stem 27 connected at its upper end to thepiston 28, the valve stern 33 extending longitudinally through the mainvalve and its tubular stem and the cylinder 13 to the upper side of thelatter, the supplemental piston 39 fast upon p the supplemental valvestem 33 above the main piston 28, the check valve 42 controllingpassages through said supplemental piston, the pushbutton 34 upon theupper end of the valve stem 33, and the spring 38 interposed betweensaid push button and the cylinder 13; substantially as described.

14. In a flushing valve, the combination of the cylinder 1 3 having thecontracted lower portion forming the ring 15 and provided with the ports17, the piston 28 in the cylinder 13, thel main valve 24 connected withsaid piston by the tubular stem 27, the supplemental valve 32 having thestem 33 extendingthrough the main valve and its tubular stem and thecylinder 13 to the upper side of the latter, the supplemental piston 39fast upon the supplemental valve stem 33 above the main piston 28 andthe check valve 42 controlling passages through said supplemental piston39; substantially Astem 33 above the plain piston 28, the check Valve 42controlling passages through said supplemental piston, and the pushbutton `the main ing 6 and having the contracted lower por-l tionforming the ring 15 seated upon the diaphragm 7 with the interposedvalve seat 12, and provided with the ports 17, lthe cap 18 screwed intothe upper end of the casing .6' and engaging the upper end of thecylinder 13, the piston 28 in the cylinder 13, the main valve 24cooperating with the valve seat 12 and having the tubular stem 27connecting it with the piston 28, the supplemental valve 32 coperatingwith the valve seat 31 on the under side of the main valve 24 and havingthe stem 33 extending longitudinally through the main valve and itstubular stem and Jthe cylinder 13 to 'the upper side of the latter;I andthe supplemental piston 39 fast upon the stem 33 above piston 28;substantially as described. f l l 17. In a tiushing valve, thecombination of the outer casing 6 having the inlet 4 at its lower endand outlet 5 at one side and provided with the diaphragm 7 between'thetwo, the cylinder 13 located within the casing 6 and having thecontracted lower porv tion forming the ring 15 seated upon the diaphragm7 with the `interposed valve seat,

12, and provided with the ports 17 the cap 18 screwed into the upper endof the casing 6 and engaging the upper end of the cylinder 13, thepiston 28 in the cylinder 13, the main valve 24 coperating with thevalve seat 12 and having thetubular stem 27 connecting it with thepiston 28, the supplevmental valve 32 coperating with the valve seat 31on the under side of the main valve 24 and having t-he stem 33 extendinglongitudinally through the main valve and its tubular stem and thecylinder 13 tothe upper side of the latter, the supplemental piston 39fastupon the stem 33 above the main piston 28, the check valve 42controlling passages through said supplemental piston, and the pushbutt-0n 34 and spring 38 at the upper end of the valve stem 33 foropcrating the latter; substantially as described.

18. In a flushing valve, the combination of an outer casing 6 having aninlet 4 at its lower end and an outlet 5 at one side and provided'withan intermediate diaphragm 7, the cylinder 13 located within the casing 6and having the contracted lower portion forming the ring 15 seated uponthe diaphragm 7 with the interposed valve seat 12, and provided with theports 17, the cap 18 screwed into the upper end of the casing 6 andengaging the cylinder 13, the pist'on 28 within said cylinder, the mainvvalve 24 comprising the disk `having the upturned outer edge 25 forengagement with the valve seat 12 and provided with the flange 26 andthe integral wings 30 for guiding it within the ring 15, the tubularstem 27' connecting said main valve with the piston 28, the

supplemental valve 32 coperating with the seat 31 on the under side ofthe main valve and extending longitudinally through the latter and itstubular stem 27 and the cylinder 13 to the upper side of the latter, thesupplemental piston 39 fast upon the stem 33 above the main piston 28,the check valve 42 controlling passages through said supplementalpiston, and the push button'34v and spring 38 at the upper end of thevalve stem 33, within the cap 18, for operating the supplemental valve;substantially as described.

19. In a flushing valve, the combination of the outer casing G having aninlet 4 at its lower end and an outlet 5 at one side and an intermediatediaphragm 7, and provided near its upper end with the tubular boss 46closed by the screw-plug 47, the cylinder 13 located wit-hin the casing6 and having the contracted lower portion forming thering 15 seated onthe diaphragm 7, and provided with the ports. 17 and having also arestricting escape passage 43 from its upper end controlled by aregulating screw 44 in axial line with the tubular boss 46 andaccessible 'thereto upon removal of the screw-plug 47,

the screw cap 18 forming the upper'end of the outer casing and engagingthe cylinder v13, the piston 28 within said cylinder, the

end of the valve stem 33 for operating theY supplemental valve;substantially as described.

EARL G. WATROUS.

l/Vitnesses T. J. KAUFMAN, ROBERT DonBERMAN.

